Question

Q.7 After scaling a triangle having
coordinates A(0,0), B(5,0).C(5,5)by 2
units in X and 3 units in Y direction
the new coordinates will
be
O
a. A(0,0),B(10,0),C(10,15)
O b. A(0,0),B(10,15),C(10,0)
O c. A(0,0),B(0,10),C(15,10)
O d. A(2,3),B(10,0),C(10,15)​

Answer 1

Answer:

A(0,0),B(10,15),C(10,0)

Answer 2

"Option A:A(0,0),B(10,0),C(10,15)".    

Explanation :

Old corner coordinates of the triangle =A(0,0), B(5,0), C(5,5)

• Scaling along X axis = 2

• Scaling along Y axis = 3

For Coordinates A(0, 0)

The new coordinates of A after scaling is =( X new, Y new ). Applying the scaling equations,

• Xnew = Xold x Sx = 0 x 2 = 0

• Ynew = Yold x Sy = 0 x 3 = 0

Thus, New coordinates of A after scaling = (0, 0).

For Coordinates B(5, 0)

• Xnew = Xold x Sx = 5 x 2 = 10

• Ynew = Yold x Sy = 0 x 3 = 0

Thus, New coordinates of B after scaling = (10, 0).

For Coordinates C(5, 5)

• Xnew = Xold x Sx = 5 x 2 = 10

• Ynew = Yold x Sy = 5 x 3 = 15

Thus, New coordinates of C after scaling = (0, 0).

New coordinates of the triangle after scaling = A (0, 0), B(10, 0), C(10, 15).